Add support for Jacoco Coverage Report Parsing
## Problem
As a developer I want to upload Jacoco Coverage Reports in GitLab, so I can see test coverage visualization without running an extra job, so I can contribute changes of high quality to projects.
## Details
This epic contains the work to:
* Add a new keyword `artifacts:reports:coverage_report`
* Write documentation for new keyword
* Support cobertura.xml file upload, parsing and display in Test Coverage visualization with the new keyword
- These may all be different issues as needed
* Support jacoco coverage report file upload, parsing and display in Test Coverage Visualization with the new keyword
- These may all be different issues as needed
* Set future removal of `artifacts:report:cobertura` keyword
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epic